high alloy steel and a corrugated foils formed by corrugating said flat foil with said flat foils and said corrugated foils being alternately stacked or the flat foil and the corrugated foil being wound up together and joined to each other, wherein joined portions between said flat foil and said corrugated foil have been formed by melting and solidification, and Fe-Cr carbide is precipitated and dispersed within said joined portions.

(48), which is provided with a catalytic coating (50; 74) and is designed as a temperature probe, the sensor being integrated in the catalytic converter (10; 70; 90) which the sensor monitors and/or controls, characterized in that the sensor has at least one further, second sensor element, the first and second sensor elements being arranged on a common substrate (42; 72), on which the sensor is constructed.

Method for
operating a catalytic converter (12) of an internal combustion engine (1), in particular in a mo
tor vehicle, in which the catalytic converter (12) is
[...]

loaded with nitrogen

[...]

oxides, and this load is then lowered again, and in which NOx emissions downstream of the catalytic converter (12) are measured, characterized in that the catalytic converter (12) is only partially loaded (Figure 3a), in that increased NOx emission (Figure 3b) is generated upstream of or in the catalytic converter (12), and in that conclusions are drawn as to the ability of the catalytic converter (12) to function from the NOx emissions which are then measured.

least a first portion of said pores have a diameter of from 10 to 30 Å and at least a second portion of said pores have a diameter of greater than 30 Å; an NOx storage member loaded into both pores having a diameter of 10 - 30 Å, and pores with a diameter greater than 30 Å in a highly dispersed manner, the NOx storage member being a member of the group consisting of K, Cs, Ca and Ba, and a noble metal a noble metal element loaded on said alumina support.

[...] conjunction with a
storage catalytic converter (8) of a motor v
ehicle for controlling and monitoring
[...]

the cyclical

[...]

cleaning process, and having a measuring probe (9), having a control device (1) which is connected to a navigation device (3) which is provided at least with the data on the current location of the motor vehicle and on the route of the motor vehicle, the control device (1) being designed to carry out the cleaning of the storage catalytic converter (8) as a function of the location and the route, characterized by means for prematurely carrying out the cleaning of the storage catalytic converter (8) if it is likely that the route will not permit later cleaning.

oxide having resistance to loss of surface area at automotive exhaust gas temperatures by treating a wet, solid cerium compound with an amount of acetic acid in excess of that required for stoichiometric conversion of said compound to cerium acetate and by calcining said acid-treated cerium compound at a temperature in excess of 350°C to form ceric oxide with a surface area of at least 80 m²/g.

more than 50% by wt. of alumina; a catalytic compound on said support having a major constituent of palladium and optionally also containing platinum, the palladium forming at least 55% by wt. of the precious metal; and a titanium oxide phase forming a discontinuous coating over the catalytic compound, said coating covering 2-40% of the surface area of substantially each exposed particle of catalytic compound and constituting 0.1-8.0% of the total weight of the catalyst.

Catalytic converter assembly
for use on an automotive vehicle, said assembly having: a substantially cylindrical catalytic converter housing (1), which is disposed close to the engine, and a plurality of supply pipes (2), which are disposed between outlets (3) of an engin
e (4) of the automotive vehicle and at least two inlets (5) of the catalytic
[...]

converter housing

[...]

(1), the supply pipes (2) terminating at the two end faces of the substantially cylindrical catalytic converter housing (1), and the axial extension of the catalytic converter housing (1) running substantially parallel to the main direction (Y) of the engine (4), characterised in that each of the inlets is connected to the particular engine outlet which lies the furthest remote therefrom.

(2) through which the flow is longitudinal, a shell housing (1) surrounding the brick (2) and having an inlet funnel (4) and an outlet funnel (5) at the ends of the brick (2), and a swelling mat (3) between the brick (2) and the wall of the shell housing (1), characterised in that the brick (2) is provided at its circumference with at least one predetermined break point.

reduced again, and in which the storage capacity of the storage catalytic converter (12') is reduced due to sulphur contained in the fuel which is used, characterized in that a plurality of ageing states (points 13) of the storage catalytic converter (12') are determined, and in that a sulphur content of the fuel which is used is determined from successive ageing states (points 13).

[...] for a
motor vehicle silencer, catalytic converter or the like, in which
[...]

the prefabricated half-shells

[...]

(1, 2) are placed with their flat shell edges (3, 4) one on the other, and the assembled half-shells (1, 2) are welded together in the region of their flat shell edges (3 or 4), characterized in that the half-shells (1, 2) are provided in the shell edge (3, 4) with positioning cutouts (5) and the half-shells are placed with mutually aligned congruent positioning cutouts (5) one on the other, and associated pairs of congruent positioning cutouts are positioned by means of positively engaging positioning studs (6) before the shell edges (3, 4) are welded together.

[...] motor vehicles by
reduction on a catalyst while adding hydrogen, the hydrogen needed for the nitrogen
oxide reduction being produced on board the motor vehi
cle by steam reforming and/or
[...]

by partial oxidation

[...]

of hydrocarbons, e.g. diesel fuels or petrols, or methanol on a catalyst, characterized in that the catalyst for the steam reforming or for the partial oxidation is controllably heated independently of the engine exhaust gases.

[...] complementary sections 4, 7 and 8 of
Form CO on ACN catalyst which were submitted after the Commission had declared the notification incomplete, the parties indicate that BP accounted for [65 to 75 %]* of the worldwide merchant ma
rket for ACN catalyst in 1997 and they estimate BP's share
[...]

If the holder of the approval completely ceases to manufacture a type of replacemen
t catalytic converter approved in accordance with this Regulation, he shall so inform the authority which granted the approval.